TinyMCE wpView: fix 'undefined' head when not adding more stylesheets to the sandbox iframe, fixes #29399
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Meta Query: Revert [28659] (and [28665]) due to regressions.

props boonebgorges.
fixes #29285. see #25538.

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Fix typo in media help text.

props tai.
fixes #29412.
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Sync tagline from about page with credits and freedoms.

props rickalee.
fixes #29409.

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Editor expand: add a filter to turn it off from PHP, fixes #29423
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Editor expand: add docs for the `wp_editor_expand` filter, props DrewAPicture, fixes #29423
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Media grid: Don't show a misleading message for an empty library.

This uses the existing string from the list table. We should revisit a better overall experience for the two situations (empty library vs. search with no results) in 4.1.

props voldemortensen.
fixes #29404.

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Editor expand:
- Adjust calculation when comparing sidebar position to wpfooter top. Fixes an annoying jumping when the user scrolls off the bottom.
- Use a var for the 'bottom' distance of the sidebar.
- Fix sidebar pinning when it's height is nearly the same as the viewport height.
Fixes #29349
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TinyMCE: fix the 'tabfocus' plugin to check if default is prevented on pressing tab, bind the events later so other plugins can cancel them. Merged upstream in https://github.com/tinymce/tinymce/commit/86098b348582e1544cc208db25954d31755e6d13 together with another change.
Fixes #29430
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Query: Add comment to the parse_tax_query() method reflecting [28987].

see #28739.

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Media: Translate a string for the search placeholder.

props alex-ye.
fixes #29448.

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Media: add a class to the <script> tag for the JSON encoded playlist data so it can be easily selected in WPPlaylistView. Props SergeyBiryukov, fixes #29383
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Avoid PHP notices when checking for local requests in in WP_Http.

props markoheijnen.
fixes #29392.
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Comments: Simplify JS for inline edit and reply.

fixes #27533.

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Canonical: Apply redirects to HEAD requests too. Adjusts [28958].

props SergeyBiryukov.
fixes #27498.

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DB: Revert [28814] and require a WHERE for wpdb::update().

see #26106.

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Unit tests for has_filter() not resetting the array pointer.

props pento.
fixes #29070. see [29472].

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Plugin install: The sort callback doesn't need to be public.

props helen.
fixes #28673.

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Check $post->post_status directly in _update_posts_count_on_delete() for better performance.

props pento.
fixes #27952.
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Simplify the code for calling refresh_blog_details() whenever 'blogname', 'siteurl', or 'post_count' option is updated.

props pento, nacin.
fixes #26410.
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